MIL-HDBK-1028/1C
different for each service and should not be compatible with
each other.
d) Typical outlet quantities for each bay are: four
breathing and four oil-free shop air and two lubricated tool
air. Typically, two oil-free shop air outlets are required per
ancillary space. Verify actual requirements for each site.
e) Ensure the intake for breathing air is located in an
uncontaminated area.
3.4.5
Noise and Vibration Control. Mechanical systems and
equipment should be designed to limit noise and vibration in
accordance with Army TM 5-805-4. Design hangar bay for maximum
75 dBA space average. Provide sound traps to attenuate fan noise
down to this level. Noise levels of 55 dBA in the hangar bay
area with the ventilation system operating at maximum airflow
have been achieved with careful design attention to fan and duct
noise characteristics. Outdoor noise levels should not exceed
75 dBA and should comply with local regulations.
3.5
Electrical Requirements. Electrical systems should be
provided in accordance with MIL-HDBK-1004/4 and as defined in
pars. 3.5.1 and 3.5.2.
Electrical equipment in the hangar bay should be
waterproof when deluge sprinkler protection is provided to
prevent equipment damage in the event of testing or accidental
discharge of the deluge system.
3.5.1
Electrical Installations. Electrical installations in
the following areas should meet the requirements in NFPA 70 for
the specific hazardous (classified) location:
a)
Hangar area,
b)
Paint and chemical mixing rooms,
c)
Paint equipment cleaning room,
d)
Paint storage room.
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